/**
 * Created by guoao on 2017/4/15.
 */
a++;
let a;

function foo(){
    return b;
}
foo();
let b;


for (let i=0;i<10;i++){
    setTimeout(function () {
        console.log(i)
    },100*i)
}

const kity={
    name:'dd',
    age:12
}
